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102231102130331 = 195380584322649
BaseRepresentation
bin10111001111101010001000…
…100001110000100010011011
3111101222012100021120222201012
4113033222020201300202123
5101344423244121132311
61001232153040244135
730350645004301166
oct2717521041604233
9441865307528635
10102231102130331
112a634a6aaa1aa9
12b5710a531064b
134507475509aa5
141b36024322add
15bc43eb4a278b
hex5cfa8887089b

102231102130331 has 4 divisors (see below), whose sum is σ = 107611686453000. Its totient is φ = 96850517807664.

The previous prime is 102231102130109. The next prime is 102231102130357. The reversal of 102231102130331 is 133031201132201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102231102130331 is a prime.

It is a super-2 number, since 2×1022311021303312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102231102130297 and 102231102130306.

It is not an unprimeable number, because it can be changed into a prime (102231102132331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690292161306 + ... + 2690292161343.

It is an arithmetic number, because the mean of its divisors is an integer number (26902921613250).

Almost surely, 2102231102130331 is an apocalyptic number.

102231102130331 is a deficient number, since it is larger than the sum of its proper divisors (5380584322669).

102231102130331 is an equidigital number, since it uses as much as digits as its factorization.

102231102130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5380584322668.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 102231102130331 its reverse (133031201132201), we get a palindrome (235262303262532).

The spelling of 102231102130331 in words is "one hundred two trillion, two hundred thirty-one billion, one hundred two million, one hundred thirty thousand, three hundred thirty-one".

Divisors: 1 19 5380584322649 102231102130331